The chord learning tool can help you to learning the chords by the different colors button, easy to remember, no pain for your finger. It owns about 30 kinds of different pressing ways, covering almost 99% songs.   Features: The chord learning tool can help you to do the right hand posture when you use it, practice hand muscle memory.  Install the chord learning tool by just clipping on the guitar neck. It is easy to install, no complex process.  The world's fastest guitar teaching aids, with five most common playing modes.  Eliminate the fear and depression of learning guitar, learn the right posture, how to hold the paddle, and proper paddle skills.  The guitar learning aid is designed with stable structure, universal fit, suitable for various guitar types.  Practical guitar learning system teaching aid, features lightweight and portable, easy to carry and use.   Specifications: Main color: black;  Main material: ABS+PC;  Item size: 80 * 50 * 40mm / 3.1 * 2.0 * 1.6in;  Item weight: 60g / 2.1ounce;  Package size: 80 * 80 * 50mm / 3.1 * 3.1 * 2.0in;  Package weight: 70g / 2.5ounce;   Packing List: 1 * Chords Beginner